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Check Point 2. Wire installation wrong remote controller group setting
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Wrong wire connection in remote controller group (Please refer to the installation manual)
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The number of connecting indoor unit and remote controller in one remote controller group
were less than 16 units.
Check Point 2-1. Check Indoor unit main PCB
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Check if main PCB damage
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Change main PCB and check the error after setting remote controller address
2-3. E: 12. Wired remote controller communication error (Indoor unit)
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2. Troubleshooting with error code
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